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Rapid Determination of Spinal Cord Content in Ground Beef by Near-Infrared Spectroscopy |
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| Authors: | Rahul Reddy Gangidi Andrew Proctor Fred William Pohlman Jean-Francois Meullenet |
| Affiliation: | Authors Gangidi, Proctor, and Meullenet are with Dept. of Food Science, Univ. of Arkansas, 2650 N. Young Ave., Fayetteville, AR 72704. Author Pohlman is with Department of Animal Science, Univ. of Arkansas, Fayetteville, Ark. Direct inquires to author Proctor (E-mail: ). |
| Abstract: | The potential of near‐infrared spectroscopy to measure spinal cord content in ground beef was investigated. Near‐infrared spectra were obtained for ground beef adulterated with 0 to 100 ppm spinal cord. A partial least square model was developed with 2nd derivative near‐infrared spectral data (5400/cm to 10000/cm). The model showed a calibration of Rval= 0.94 and a validation of Rval= 0.90. The detection limit of the model was 21 ppm, and sensitivity to detect true positive spinal cord–adulterated samples was 87%. Near‐infrared spectroscopy has the potential to identify spinal cord–adulterated ground beef. |
| Keywords: | spinal cord ground beef bovine spongiform encephalopathy 2nd derivative NIR PLS |